crates/apub/src/activities/community/update.rs

   1 use crate::{
   2   activities::{
   3     community::{announce::GetCommunity, send_activity_in_community},
   4     generate_activity_id,
   5     verify_activity,
   6     verify_is_public,
   7     verify_mod_action,
   8     verify_person_in_community,
   9   },
  10   activity_lists::AnnouncableActivities,
  11   objects::{community::ApubCommunity, person::ApubPerson},
  12   protocol::activities::community::update::UpdateCommunity,
  13 };
  14 use activitystreams_kinds::{activity::UpdateType, public};
  15 use lemmy_api_common::blocking;
  16 use lemmy_apub_lib::{
  17   data::Data,
  18   object_id::ObjectId,
  19   traits::{ActivityHandler, ActorType, ApubObject},
  20 };
  21 use lemmy_db_schema::{
  22   source::community::{Community, CommunityForm},
  23   traits::Crud,
  24 };
  25 use lemmy_utils::LemmyError;
  26 use lemmy_websocket::{send::send_community_ws_message, LemmyContext, UserOperationCrud};
  27
  28 impl UpdateCommunity {
  29   #[tracing::instrument(skip_all)]
  30   pub async fn send(
  31     community: ApubCommunity,
  32     actor: &ApubPerson,
  33     context: &LemmyContext,
  34   ) -> Result<(), LemmyError> {
  35     let id = generate_activity_id(
  36       UpdateType::Update,
  37       &context.settings().get_protocol_and_hostname(),
  38     )?;
  39     let update = UpdateCommunity {
  40       actor: ObjectId::new(actor.actor_id()),
  41       to: vec![public()],
  42       object: Box::new(community.clone().into_apub(context).await?),
  43       cc: vec![community.actor_id()],
  44       kind: UpdateType::Update,
  45       id: id.clone(),
  46       unparsed: Default::default(),
  47     };
  48
  49     let activity = AnnouncableActivities::UpdateCommunity(update);
  50     send_activity_in_community(activity, &id, actor, &community, vec![], context).await
  51   }
  52 }
  53
  54 #[async_trait::async_trait(?Send)]
  55 impl ActivityHandler for UpdateCommunity {
  56   type DataType = LemmyContext;
  57
  58   #[tracing::instrument(skip_all)]
  59   async fn verify(
  60     &self,
  61     context: &Data<LemmyContext>,
  62     request_counter: &mut i32,
  63   ) -> Result<(), LemmyError> {
  64     verify_is_public(&self.to, &self.cc)?;
  65     verify_activity(&self.id, self.actor.inner(), &context.settings())?;
  66     let community = self.get_community(context, request_counter).await?;
  67     verify_person_in_community(&self.actor, &community, context, request_counter).await?;
  68     verify_mod_action(&self.actor, &community, context, request_counter).await?;
  69     ApubCommunity::verify(
  70       &self.object,
  71       &community.actor_id.clone().into(),
  72       context,
  73       request_counter,
  74     )
  75     .await?;
  76     Ok(())
  77   }
  78
  79   #[tracing::instrument(skip_all)]
  80   async fn receive(
  81     self,
  82     context: &Data<LemmyContext>,
  83     request_counter: &mut i32,
  84   ) -> Result<(), LemmyError> {
  85     let community = self.get_community(context, request_counter).await?;
  86
  87     let updated_community = self.object.into_form();
  88     let cf = CommunityForm {
  89       name: updated_community.name,
  90       title: updated_community.title,
  91       description: updated_community.description,
  92       nsfw: updated_community.nsfw,
  93       // TODO: icon and banner would be hosted on the other instance, ideally we would copy it to ours
  94       icon: updated_community.icon,
  95       banner: updated_community.banner,
  96       ..CommunityForm::default()
  97     };
  98     let updated_community = blocking(context.pool(), move |conn| {
  99       Community::update(conn, community.id, &cf)
 100     })
 101     .await??;
 102
 103     send_community_ws_message(
 104       updated_community.id,
 105       UserOperationCrud::EditCommunity,
 106       None,
 107       None,
 108       context,
 109     )
 110     .await?;
 111     Ok(())
 112   }
 113 }
 114
 115 #[async_trait::async_trait(?Send)]
 116 impl GetCommunity for UpdateCommunity {
 117   #[tracing::instrument(skip_all)]
 118   async fn get_community(
 119     &self,
 120     context: &LemmyContext,
 121     request_counter: &mut i32,
 122   ) -> Result<ApubCommunity, LemmyError> {
 123     let cid = ObjectId::new(self.object.id.clone());
 124     cid
 125       .dereference(context, context.client(), request_counter)
 126       .await
 127   }
 128 }